The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This essay makes a brief introduction to the principal and practice of the remote intelligent controlling and monitoring system of home appliances based on GPRS/GSM. This controlling and monitoring system is carried by embedded computer, and based on temperature sensor, security sensor, fireproof sensor and the implementing of circuit. Moreover, this system can provide real-time online surveillance...
Niniejsze artykuł przedstawia opis koncepcji użycia wyselekcjonowanych podzespołów optoelektronicznych, opracowanych elementów integracji hardwarowo/softwarowych, i ich badań oraz metod syntezy uzyskanych informacji w celu monitorowania stref ochrony przestrzennej obiektów rozległych z możliwą automatyczną detekcją zagrożeń. W artykule przedstawiono proces identyfikacji czujników optoelektronicznych...
A need has long existed for a rapid deployment, terrain following security sensor for use around portable resources, along an avenue of approach, or for the temporary replacement of a failed sensor. Existing solutions such as portable microwave or passive infra-red (PIR) sensors are relatively inexpensive, but cannot work over uneven terrain, around corners, or in foliage. The cost and installation...
Network security situational awareness system (NSSAS) is one of the hotspots in information security domain. In order to solve the problem of NSSAS security situation information acquisition, it is highly necessary to study security sensors. On the basis of knowing the information requirement of NSSAS, we put forward a kind of classification method of security sensors, design a general architecture...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.